Die.



C. HOLSCLAW.

DIE.

APPLICATION FILED OCT- 15. 1912.

1,249,961. Patented Dec.11,1917.

CHARLES Hers CLAW, or LOUISVILLE, KENTUCKY, ASSIGNOR .To B. AVERY 8;sonsfv Mm: Gram OF LOUISVILLE, KENTUCKY, A CORPORATION OF KENTUCKY.

DIE.

To all whom it may concern Be it known that 1, CHARLES HOLSCLAW, acitizen of the United States, residing at Louisville, in the county ofJefferson and State of Kentucky, have invented new and usefulImprovements in Dies, of which the following is a specification. f

In the manufacture of plow shares it is customary to weld a longitudinaledge of a bar, hereinafter called share bar,to the surface of a blade,hereinafter called share blade, adjacent to the longitudinal edge of thelatter. This welding operation has been performed under pressure-in diesmade for the purpose. Dies hitherto employed have been so constructedthat the rear edge of the share bar was not protected againstdeformation and this has necessitated a grinding off of the rear edge ofthe share bar in order that it might accurately fit the forward edge ofthe landside. This'grinding' operation entails an expense toeliminateall or a very substantial part of which is one of the important objectsof thepresent invention. Moreover, the upper or rear edge of the shareblade must be accurately fittedto the lower or forward edge of themoldboard and dies employed in the welding operation hereinbeforereferred to have been of such nature that the 'npper edge of the shareblade has been ground to properly mate or joint with the lower edge ofthe moldboard. My invention, also, has for one of its important objectsthe provision of a die which will make it practicable to cut or sheartheshare blade to fit the moldboard.

Again, dies at present employed for welding share blades to share bars,in the manufacture of plow shares,'h ave been so constructed that thelabor of keeping them free from scale has imposed an important expenseto substantially reduce which is one of the purposes of thepresenteinvention.

In short the present invention aims. among other things, to reduce to avery substantial extent the cost of plow shares by eliminating, or to avery substantial extentreducing, the necessity of grinding the share barand share blade in order that they will accurately fit the landside andmoldboard of the plow and also aims to produce a further economy in theproduction of the shares by means of a die which is so constructed thatthe labor of scratching the scale therefrom is eliminated. Y r

1912. serial 110.7%,019.

Specification of Letters latentr i Patented D c. 11 1917.Applicationfiledflctober 1e, T

A further aim of the invention to eiiia f I inate a substantialpercentage of the cost, of dies lntherto'employed in the productiontofplow shares.

The aecomp Without departing fromthe spirit of the in} vention or thescope of the subjoined claims.

In said drawings ent invention.

Fig. 3 is a perspective view showing the? two dies in the position theyoccupy when they have been brought together;

Figs. and 5 are perspective Views'lof one of the dies showingmodified,fornisthereofQ.

Similar characters of reference denote corresponding parts inthe severalviews.

anying drawings show dies of I constructions which satisfactorily. carryinto" practice the several stated purposes of the invention, but whosedetails may be varied i so, A designates the lower die and. B designatesthe upper die. These dies aremadeof I steel of suitablefkind or grade,of which semi-steel is an example.

The die A has a cavity forming alseat a:

which is of gradually increasing depthlaterally and longitudinally andof gradually increasing width from one end toward the other, and thedie-is formed along one side of said seat orcavity with a member .10,which forms an approximately vertical Wall:

at the deeper side thereof. The dieAis also. provided with an' end wall(16 Figs. l'and l, or A Fig. 5) hereinafter more'particul'arly setforth, :which extends acrossthe widerend of the seat or cavity and isinterrupted ad-.

j acent to the member 10, and at other places; also, if desired. Thedescribed shape of the cavity and the interruption or interruptionsinthe end .wall facilitate the removal of the scale which is formed ordeposited in the use of the die, by eliminating obstructions whichprevent the easy: removal of the scale. p

The upper die B has a part b arrangedto extend over the seat or cavity aand to form with the latter a space for the blade of the share, and alsohas a depression forming a; longitudinal outwardly extending 'member 11which extends over the member 10 when the two dies have been broughtinto opera tive relation. Inthe angle-between the surfaceb vandthemember11, the upper die is formed with a longitudinal rib. 12 whose purposewill hereinafter be more'fully un derstood.

In each of the forms of the present invention the member of the die A isprovided with a laterally projecting element one of whose importantpurposes is to prevent cleformation of the end of the share bar duringthe welding operation.

ni the form shown in Figs. 1, 2 and 3, the laterally projecting elementreferred to, des ignated A is a plate which extends through an aperturea formed transversely.through the member 10 and is fixedly secured, butin a, manner which permits it to be removed or adjusted, by suitablemeans, such as the dowel pin 13 and screw 1 for example. This plate isformed of tool steel and is so arranged that the side surface of itsprojectin'g 'end,'which engages the rear end of the share bar, isdisposed at an angle to the inner surface ofthe side wall formed by themember 10 and extends across said inner surface, whereby it is soarranged with relaticn to the end of the share bar that the latter willbe engaged substantially throughout its entire area by said surface ofthe proj'ecting portion of the element A, said element thereby forming astop wall capable of preventing deformation of the end of the share bar.The adj ustability of this element A enables the extent of itsprojection from the member to be adjusted in accord with share bars ofdifferent thicknesses and its rcm ovability enables it to be renewedwhen worn, thereby prolonging the life of the. die.

In the modified form shown in Fig. 4-, the stop wall to engage the rearend of the share bar isformed in part by a section a which projectslaterally from and is integral with the member 10 but terminates belowthe upper surface of thelatter, and in part by a bar of tool steel, Awhich rests on the section. a and extends longitudinally of the menib er1 0 and is secured to the latter by suitable eans as the screws 15. Itwill be noted that in this form of the invention theinner edges of thesection a. and bar A form a surface disposed at an angle to andextending across the inner surface of the side wall, to engage the endof the share bar substanti'ally throughout the area of said end.

a It will be understood that in the use of the die A, the share-b1ade(or the stock or part which ultimately becomes the blade of the share)is arranged fiatwise upon the surface of the seat or cavity a and theshare bar is arranged longitudinally thereof with its lower edge uponthe upper surface of the blade (as usual) itsside against the innersideof. the member 10 and its end against the stop wall substantiallyfrom top to bottom.

Theend of the seat a in the die A which iscontiguous to the upper edgeof the share; blade, is provided with a gage or stop-wall which isinterrupted to facilitate the removal of scale from the cavity a. Thiswall may be provided by a raised surface a having a channel 17 as shownin Fig. 5, butv preferably is formed by a plurality of hard steelpins'o'r u iward projections 16 which are spaced apart and preferablyhave fiat toned forward surfaces 16 as shown best in Figs. ,1 and '3.The recess 17 shownin the lower die is for the tongs used to awn-r A orthe parts a, A, according to which form of stop wall is being employed.The blade and bar are at a welding heat and are welded to each otherunder pressure be tween the upper and lower dies, the longitudinal rib12 of the upper die being in position to bear upon the upper edge of theshare bar and press it down upon the blade. It will be noted that as theelement A, or the part A, whichever is employed, is made of hard steeland is arranged in absolutely correct position, the end of the bar whichis against the same and which must mate the end of the landsid'e, issmooth and straight when it leaves the die and provides an element fromwhich one may gage inrem'ovi'ng, as by shearing, for example, surplusmetal from that end of the blade which is to engage the edge of themoldboard, thereby forming the blade to fit the moldboard withoutgrinding. It will also be noted that the construction of the die A issuch that there are no pockets or blade walls in the die and thatthedie, being made of steel, produces a smoother share than is possiblewhen cast-iron dies are used, and further it will be noted that the"structure of said die is such that it may be readily cleaned of scale.

It has been found that by the use of the present inventionin theproduction of plow shares, the cost of dies, the cost of labor ingrinding and fitting the shares to the moldboards, and 'landsi'des ofthe plows, and the number of vulcanite wheels, with the attendant costof the latter and expense for power, etc.,.incidental to the usethereof, each has been eliminated, and, moreover, that the appearance ofthe shares and the accurate fitting of the same to the moldboard andlandsid'e has been rather improved than otherwise.

lVhile the invention has herein particu- 1. A welding die for plowshares, said die having a cavity arranged to receive the share blade,said cavity having a side wallprovided with an element projectinglaterally therefrom and adapted to engage and prevent deformation of theend of the share bar,

the said element being arranged with its surface to engage the share bardisposed at an angle to and extending across the inner surface of'theside wall, the die also having an end wall arranged to engage the end ofthe blade of the share, the end wall being spaced from the side wall andbeing interrupted.

2. A welding die having a cavity provided with a side wall, said Wallhaving an opening extending through the same from its inner to its outersurface, a hard steel plate extending through said opening and havingits inner end arranged in the cavity, and means for adjustably fixingthe plate to the side wall.

3. A welding die having a cavity and a side wall, means projecting fromthe side wall and forming a wall which partially closes one end of thecavity, the said cavity having a second end wall formed of a pluralityof spaced projections, the two end walls being arranged at the same endof the cavity.

A welding die for plow shares having its body provided with aseparately-formed hard steel element arranged to engage and preventdeformation of the rear end of the share bar, the body of the die beingmade of softer metal and provided with an interrupted wall arranged toengage the rear edge of the share blade.

5. A pair of complementary metal dies for plow shares, one of which isformed with a cavity having a side wall provided with a Copies of thispatent may be obtained for &

hard steel element arranged to engage the rear end of the share bar,said die also having a wall which is interrupted and is disposed at thesame end of the cavity as said element and is arranged to engage therear edge of the share blade, and the other of which dies has alongitudinal rib to engage the contiguous surface of the share bar.

6. A pair of complementary steel dies for plow shares, one of which hasa cavity with a sidewall provided with a'lateral opening and ahard-steel element in said opening, the said element being removably andfixedly secured in position and arranged to engage and preventdeformation of the end of the share bar; said die also having aninterrupted stop wall formed of a plurality of separated projectionsarranged to engage the rear edge of the share blade, the other ofsaiddies being recessed to receive said side wall and provided withinsaid recess with a longitudinal rib to engage the contiguous surface ofthe share bar. p

7 A welding die for plow shares, said die comprising a cavity arrangedto receive the share blade and having a side wall provided with anelement projecting laterally therefrom against one face of which the endof the share bar rests during the welding operation, said face beingshaped to conform to the shapeof the end of the finished share barwhereby the true shape of the end of the share bar is maintained duringthe welding operation.

8. A welding die for plow shares having a cavity arranged to receive theshare blade, said cavity having a side wall and a removable elementprojecting laterally from said side wall and lying in such position thatthe end of the share bar may lie in contact therewith during the weldingoperation, the contacting face of the removable element being shaped toconform to the finished shape of the end of the share bar.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES HOLSCLAW.

Witnesses:

WM. M. JOHNSTON, J. FRED HARTKEMEIER, Jr.

five cents each, by addressing the Commissioner of latents Washington,D. G.

